Hello SV 7! My name is Jeremy and I’m happy to help you with your question.
Have you tried using the different filters that will automatically send emails within a certain criteria or rule to be automatically sent to the spam or junk folders?
Here is a link to both how to set up these filters and their practical uses.
It shows how to filter out emails from spam but the settings to configure who is blocked or allowed is located in the same place.
https://support.microsoft.com/help/db786e79-54e2-40cc-904f-d89d57b7f41d
Regards,